That first down spot on the 8 at the end of the game was some first class BS. The line judge that actually watches the line and spotted the ball, it called it short. Then the referee (official supreme ruler) 10 yards behind the line of scrimmage runs up, signals first down and picks up the ball and tosses it to be placed for the snap.
How can a guy behind the play overrule the line judge who is specifically watching for ball placement when the tackle is made right in front of him and he has the best view?
If I had to bet the referee owed someone some money.